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A Manual on the Culture, Management, Diseases and Insects of Greenhouse Roses Robert W. Langhans, Roses Incorporated ... Newly infected rose grafts show a white to grayish-white, mildew-like fungus growth over the cut surface of both stock and scion. ... The fungus can also live over in field soil for about a year. ... Careful sanitation practices should be followed in the budding or grafting operation since the organism apparently can be spread by workmen, perhaps on tools, anbsp;...

Author:Robert W. Langhans, Roses Incorporated
Publisher: - 1987


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